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Products:
Application Guide
Application
Guide for American Solar Thermal Tile System
There
are several short payback applications for the American Solar Thermal
Tile Systems and Panel. Each application delivers different amounts
of energy in different climates and in different uses.
The
following tables provide guidance on how best to apply the solar
thermal tile system. For the panel system, estimate the energy delivery
at 75% of the values listed below.
| |
|
Expected
Energy Savings |
| USE |
BTU
Delivered per square foot of solar tiles |
@ $10 per million BTU energy saved |
@
$20 per million BTU energy saved |
@
$30 per million BTU energy saved |
| Year
Round 120 F max delivered temp. |
200,000
per year |
$2.00/sq
ft/yr |
$4.00/sq
ft/yr |
$6.00/sq
ft/yr |
| Year
Round With 65 F max delivered temp. |
240,000
per year |
$2.40/sq
ft/yr |
$4.80/sq
ft/yr |
$7.20/sq
ft/yr |
| Seasonal
Heating |
100,000
per year |
$1.00/sq
ft/yr |
$2.00/sq
ft/yr |
$3.00/sq
ft/yr |
| Seasonal
With Thermal Storage |
130,000
per year |
$1.30/sq
ft/yr |
$2.60/sq
ft/yr |
$3.90/sq
ft/yr |
| Application |
Type
of Heating Energy Displaced |
Typical
Existing Delivered Heating Cost |
Solar
Tile Simple Payback Period |
| Generator
Standby Heat |
Electric
Resistance |
$15-30/million
BTU |
2-4
years |
| Heat
Pump Pre-heat |
Electric
Heat Pump & Resistance |
$6-20/million
BTU |
5-7
years |
| Boiler
Air Pre-heat |
Gas,
Oil, Propane |
$8-16/million
BTU |
3-6
years |
| Ventilation
Pre-heat |
Gas,
Oil, Steam, Propane, Electric Heat Pump and Resistance |
$8-30/million
BTU |
4-8
years |
Ask about roof top unit preheating, hot water heating, and new
solar storage buildings that pay for themselves from the energy
dollars you save. Simply buy the heat and we will install the solar
roofed storage building for your use.
The Colder the Climate, the More You Save
Everyone knows solar energy produces lots of heat in the desert
southwest. What many people don't know is that there is plenty of
solar energy available in the colder northern climates. It is in
those climates that solar energy can save the most money and repay
the investment quickly. It is the combination of heating needs and
solar availability that creates the savings.
| US
Heating Degree Day (HDD) Zone |
Space
Heating Energy Used per Year |
Space
Heating Delivered per Year |
Typical
Cities |
| >
7,000 HDD |
47,300
BTU/occupied sq ft |
110,000
BTU/ sq ft of installed tiles |
Albany,
Duluth, Sioux Fall, Cheyenne |
| 5,500-7,000
HDD |
48,000
BTU/occupied sq ft |
100,000
BTU/ per sq ft of installed tiles |
Boston,
Cleveland, Topeka, Denver |
| 4,000-5,500
HDD |
29,000
BTU/occupied sq ft |
90,000
BTU/ per sq ft of installed tiles |
DC,
Cincinnati, Wichita, Albuquerque, Seattle |
| <
4,000 |
15,900
BTU/occupied sq ft |
70,000
BTU/ per sq ft of installed tiles |
Raleigh,
Chattanooga, Tulsa, San Francisco |
Note: All values represent what could be expected in generalized areas
of the country and for a typical applications. However, each application
requires a specific evaluation of the conditions at the site. The
values above provide a first estimate of energy and cost savings,
when the solar thermal tiles are facing south, with a 50 degree tilt,
and delivering energy to typical heating loads.
However, contact American Solar or a solar thermal tile provider
to get an assessment of your site to support planning for your project.
SPECs
American Solar Thermal Panel Specs
(145k pdf)
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